Development of Fe-B Based Bulk Metallic Glasses: Morphology of Residual Phases in Fe₅₀Ni₁₆Mo₆B₁₈Zr₁₀ Glass

Publisher： MDPI

E-ISSN： 2075-4701|3|2|159-177

ISSN： 2075-4701

Source： Metals, Vol.3, Iss.2, 2013-04, pp. : 159-177

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Iron-boron based bulk metallic glasses (BMG) development has been initiated using Fe₄₀Ni₃₈Mo₄B₁₈ as precursor. Addition of zirconium up to 10 atomic % along with the reduction of Ni proportion improves the glass forming ability (GFA), which is optimum when Ni is suppressed in the alloy. However melting instability occurred during the materials fabrication resulting in the formation of residual crystalline phases closely related to the amorphous phase. Microstructure study shows an evolution from amorphous structure to peculiar acicular structure, particularly for Fe₅₀Ni₁₆Mo₆B₁₈Zr₁₀, suggesting the amorphous structure as interconnected atomic sheets like “atomic mille feuilles” whose growth affects the alloys’ GFA.